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公开(公告)号：US06975100B2
公开(公告)日：2005-12-13
申请号：US10824712
申请日：2004-04-14
CPC分类号： H03K7/08 , H03K5/1565
摘要： A circuit arrangement for regulating the duty cycle of an electrical signal including a first input differential amplifier, to which an input signal is applied; a first current source for controlling the current through the first input differential amplifier; a second input differential amplifier, to which the same input signal is applied; a second current source for controlling the current through the second input differential amplifier; a device which generates a fluctuating voltage signal from output signals of the two input differential amplifiers; a buffer device, which converts the fluctuating voltage signal into a digital output signal; a capacitance and a device for charging and discharging the capacitance in time with the digital output signal. The voltage present at the capacitance is fed to the first and second current sources as control voltage and effects regulation of the two current sources in opposite senses.
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公开(公告)号：US20050134249A1
公开(公告)日：2005-06-23
申请号：US10824712
申请日：2004-04-14
CPC分类号： H03K7/08 , H03K5/1565
摘要： A circuit arrangement for regulating the duty cycle of an electrical signal including a first input differential amplifier, to which an input signal is applied; a first current source for controlling the current through the first input differential amplifier; a second input differential amplifier, to which the same input signal is applied; a second current source for controlling the current through the second input differential amplifier; a device which generates a fluctuating voltage signal from output signals of the two input differential amplifiers; a buffer device, which converts the fluctuating voltage signal into a digital output signal; a capacitance and a device for charging and discharging the capacitance in time with the digital output signal. The voltage present at the capacitance is fed to the first and second current sources as control voltage and effects regulation of the two current sources in opposite senses.
摘要翻译： 一种电路装置，用于调节包括施加输入信号的第一输入差分放大器的电信号的占空比; 用于控制通过第一输入差分放大器的电流的第一电流源; 施加相同输入信号的第二输入差分放大器; 用于控制通过第二输入差分放大器的电流的第二电流源; 一个从两个输入差分放大器的输出信号产生波动的电压信号的装置; 缓冲装置，其将波动的电压信号转换成数字输出信号; 一个电容和一个用于与数字输出信号及时放电电容的装置。 电容存在的电压作为控制电压被馈送到第一和第二电流源，并且以相反的方式影响两个电流源的调节。
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公开(公告)号：US20050225370A1
公开(公告)日：2005-10-13
申请号：US10897179
申请日：2004-07-22
申请人： Torsten Harms , Harald Doppke , Detlev Theil , Stefan van Waasen
发明人： Torsten Harms , Harald Doppke , Detlev Theil , Stefan van Waasen
CPC分类号： H03K5/1565 , H03K5/086
摘要： A circuit arrangement for regulating a parameter (e.g., duty cycle) of an electrical signal, generated by a circuit component. The regulating device includes a first integrator, which is supplied with the output signal from the circuit component, and a second integrator, which is supplied with the output signal from the first integrator. The second integrator has an operational amplifier having an inverting input, a noninverting input and an output, and the output is fed back to the inverting input via a feedback path. The inverting input receives the output signal from the first integrator. The noninverting input receives a reference signal. The output of the operational amplifier is fed back to the inverting input via a series circuit including a capacitor and a resistor. The output of the second operational amplifier provides an output signal from the regulating device, which is supplied to the circuit component as a controlled variable.
摘要翻译： 一种用于调节由电路部件产生的电信号的参数（例如占空比）的电路装置。 调节装置包括被提供有来自电路部件的输出信号的第一积分器和被提供有来自第一积分器的输出信号的第二积分器。 第二积分器具有运算放大器，其具有反相输入，非反相输入和输出，并且经由反馈路径将输出反馈到反相输入。 反相输入接收来自第一积分器的输出信号。 同相输入接收参考信号。 运算放大器的输出通过包括电容器和电阻器的串联电路反馈到反相输入端。 第二运算放大器的输出提供来自调节装置的输出信号，其作为受控变量提供给电路部件。
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公开(公告)号：US07088160B2
公开(公告)日：2006-08-08
申请号：US10897179
申请日：2004-07-22
申请人： Torsten Harms , Harald Doppke , Detlev Theil , Stefan van Waasen
发明人： Torsten Harms , Harald Doppke , Detlev Theil , Stefan van Waasen
IPC分类号： H03K3/017
CPC分类号： H03K5/1565 , H03K5/086
摘要： A circuit arrangement for regulating a parameter (e.g., duty cycle) of an electrical signal, generated by a circuit component. The regulating device includes a first integrator, which is supplied with the output signal from the circuit component, and a second integrator, which is supplied with the output signal from the first integrator. The second integrator has an operational amplifier having an inverting input, a noninverting input and an output, and the output is fed back to the inverting input via a feedback path. The inverting input receives the output signal from the first integrator. The noninverting input receives a reference signal. The output of the operational amplifier is fed back to the inverting input via a series circuit including a capacitor and a resistor. The output of the second operational amplifier provides an output signal from the regulating device, which is supplied to the circuit component as a controlled variable.
摘要翻译： 一种用于调节由电路部件产生的电信号的参数（例如占空比）的电路装置。 调节装置包括被提供有来自电路部件的输出信号的第一积分器和被提供有来自第一积分器的输出信号的第二积分器。 第二积分器具有运算放大器，其具有反相输入，非反相输入和输出，并且经由反馈路径将输出反馈到反相输入。 反相输入接收来自第一积分器的输出信号。 同相输入接收参考信号。 运算放大器的输出通过包括电容器和电阻器的串联电路反馈到反相输入端。 第二运算放大器的输出提供来自调节装置的输出信号，其作为受控变量提供给电路部件。
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公开(公告)号：US06952005B2
公开(公告)日：2005-10-04
申请号：US10818878
申请日：2004-04-05
申请人： Harald Doppke , Detlev Theil , Torsten Harms , Stefan van Waasen
发明人： Harald Doppke , Detlev Theil , Torsten Harms , Stefan van Waasen
IPC分类号： H04B10/158 , H01L31/00
CPC分类号： H04B10/6933
摘要： Optical receiver circuit having a first, illuminable reception device for converting an optical signal into an analog electrical signal; a first preamplifier for amplifying the output signal of the first reception device; a postamplifier having a first input and a second input, the first input being supplied with the signal of the first reception device (said signal having been amplified in the first preamplifier) and the second input being supplied with a reference signal; an offset compensation circuit, which regulates the difference between the mean value of the electrical signal at the first input of the postamplifier and the reference signal at the second input of the postamplifier to a constant value; and having a signal detection device, which detects a control signal of the offset compensation circuit and carries out signal detection in a manner dependent on this signal. The invention provides signal detection in an optical receiver circuit, which manages with few additional components.
摘要翻译： 光接收器电路具有用于将光信号转换为模拟电信号的第一可照明接收装置; 第一前置放大器，用于放大第一接收装置的输出信号; 具有第一输入和第二输入的后置放大器，所述第一输入被提供有所述第一接收装置的信号（所述信号已经在所述第一前置放大器中被放大）并且所述第二输入被提供参考信号; 偏移补偿电路，其将后置放大器的第一输入端的电信号的平均值与后置放大器的第二输入端的参考信号之间的差调节到恒定值; 并具有信号检测装置，其检测偏移补偿电路的控制信号，并以取决于该信号的方式执行信号检测。 本发明在光接收机电路中提供信号检测，其中管理少量附加组件。
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公开(公告)号：US20050133691A1
公开(公告)日：2005-06-23
申请号：US10818878
申请日：2004-04-05
申请人： Harald Doppke , Detlev Theil , Torsten Harms , Stefan van Waasen
发明人： Harald Doppke , Detlev Theil , Torsten Harms , Stefan van Waasen
IPC分类号： H04B10/158 , H03F3/14
CPC分类号： H04B10/6933
摘要： Optical receiver circuit having a first, illuminable reception device for converting an optical signal into an analog electrical signal; a first preamplifier for amplifying the output signal of the first reception device; a postamplifier having a first input and a second input, the first input being supplied with the signal of the first reception device (said signal having been amplified in the first preamplifier) and the second input being supplied with a reference signal; an offset compensation circuit, which regulates the difference between the mean value of the electrical signal at the first input of the postamplifier and the reference signal at the second input of the postamplifier to a constant value; and having a signal detection device, which detects a control signal of the offset compensation circuit and carries out signal detection in a manner dependent on this signal. The invention provides signal detection in an optical receiver circuit, which manages with few additional components.
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公开(公告)号：US20080231363A1
公开(公告)日：2008-09-25
申请号：US11788036
申请日：2007-04-18
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45 , H03F2200/447 , H03F2203/45352 , H03F2203/45354
摘要： The invention relates to an differential amplifier circuit comprising an amplifier stage comprising a first and a second transistor, the gates of which are connected to differential input terminals of the amplifier stage. The differential amplifier further comprises a temperature compensation circuit comprising a third and fourth transistor. The third transistor is connected to the source of the first transistor and the fourth transistor is connected to the source of the second transistor. Further, the temperature compensation circuit comprises a constant current source connected to the respective sources of the third and fourth transistors. Thereby the temperature compensation circuit is arranged to provide a feedback resistance in dependence on the operating temperature so as to compensate for variations of the resistance of the first and second transistors.
摘要翻译： 本发明涉及一种差分放大器电路，其包括放大器级，该放大器级包括第一和第二晶体管，其栅极连接到放大器级的差分输入端。 该差分放大器还包括一个包括第三和第四晶体管的温度补偿电路。 第三晶体管连接到第一晶体管的源极，第四晶体管连接到第二晶体管的源极。 此外，温度补偿电路包括连接到第三和第四晶体管的各个源极的恒流源。 由此，温度补偿电路被布置成根据工作温度提供反馈电阻，以便补偿第一和第二晶体管的电阻的变化。
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公开(公告)号：US07616059B2
公开(公告)日：2009-11-10
申请号：US11788036
申请日：2007-04-18
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45 , H03F2200/447 , H03F2203/45352 , H03F2203/45354
摘要： The invention relates to an differential amplifier circuit comprising an amplifier stage comprising a first and a second transistor, the gates of which are connected to differential input terminals of the amplifier stage. The differential amplifier further comprises a temperature compensation circuit comprising a third and fourth transistor. The third transistor is connected to the source of the first transistor and the fourth transistor is connected to the source of the second transistor. Further, the temperature compensation circuit comprises a constant current source connected to the respective sources of the third and fourth transistors. Thereby the temperature compensation circuit is arranged to provide a feedback resistance in dependence on the operating temperature so as to compensate for variations of the resistance of the first and second transistors.
摘要翻译： 本发明涉及一种差分放大器电路，其包括放大器级，该放大器级包括第一和第二晶体管，其栅极连接到放大器级的差分输入端。 该差分放大器还包括一个包括第三和第四晶体管的温度补偿电路。 第三晶体管连接到第一晶体管的源极，第四晶体管连接到第二晶体管的源极。 此外，温度补偿电路包括连接到第三和第四晶体管的各个源极的恒流源。 由此，温度补偿电路被布置成根据工作温度提供反馈电阻，以便补偿第一和第二晶体管的电阻的变化。
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9.发明授权Polar modulation / one-point frequency modulation with flexible reference frequency 有权极性调制/单点频率调制具有灵活的参考频率公开(公告)号：US07995697B2
公开(公告)日：2011-08-09
申请号：US11764648
申请日：2007-06-18
申请人： Michael Lewis , Detlev Theil
发明人： Michael Lewis , Detlev Theil
IPC分类号： H03D3/24
CPC分类号： H04L27/361 , H04L27/12
摘要： Apparatuses and methods for operating a modulation system using a flexible reference frequency signal are disclosed. A modulation system uses a phase-locked loop (PLL). An internal reference signal source is configured to provide an internal reference signal having an internal frequency that is substantially independent of the reference frequency. A frequency signal source is configured to provide a plurality of first samples of the frequency signal taken at a first sampling frequency according to the internal reference signal. A resampling device is configured to receive and resample the plurality of first samples to generate a plurality of second samples taken at a second sampling frequency according to the reference frequency. A loop gain compensation device is configured to receive the reference frequency and apply an offset gain to inversely offset a change in PLL loop gain responsive to a change in the reference frequency.
摘要翻译： 公开了使用柔性参考频率信号来操作调制系统的装置和方法。 调制系统使用锁相环（PLL）。 内部参考信号源被配置为提供具有基本上与参考频率无关的内部频率的内部参考信号。 频率信号源被配置为提供根据内部参考信号以第一采样频率拍摄的频率信号的多个第一采样。 重采样设备被配置为接收并重新采样多个第一采样以产生根据参考频率以第二采样频率拍摄的多个第二采样。 环路增益补偿装置被配置为接收参考频率并应用偏移增益来抵消响应于参考频率变化的PLL环路增益的变化。
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10.发明申请POLAR MODULATION / ONE-POINT FREQUENCY MODULATION WITH FLEXIBLE REFERENCE FREQUENCY 有权极性调制/具有灵活参考频率的一点频率调制公开(公告)号：US20080310573A1
公开(公告)日：2008-12-18
申请号：US11764648
申请日：2007-06-18
申请人： Michael Lewis , Detlev Theil
发明人： Michael Lewis , Detlev Theil
IPC分类号： H03D3/24
CPC分类号： H04L27/361 , H04L27/12
摘要： Apparatuses and methods for operating a modulation system using a flexible reference frequency signal are disclosed. A modulation system uses a phase-locked loop (PLL). An internal reference signal source is configured to provide an internal reference signal having an internal frequency that is substantially independent of the reference frequency. A frequency signal source is configured to provide a plurality of first samples of the frequency signal taken at a first sampling frequency according to the internal reference signal. A resampling device is configured to receive and resample the plurality of first samples to generate a plurality of second samples taken at a second sampling frequency according to the reference frequency. A loop gain compensation device is configured to receive the reference frequency and apply an offset gain to inversely offset a change in PLL loop gain responsive to a change in the reference frequency.
摘要翻译： 公开了使用柔性参考频率信号来操作调制系统的装置和方法。 调制系统使用锁相环（PLL）。 内部参考信号源被配置为提供具有基本上与参考频率无关的内部频率的内部参考信号。 频率信号源被配置为提供根据内部参考信号以第一采样频率拍摄的频率信号的多个第一采样。 重采样设备被配置为接收并重新采样多个第一采样以产生根据参考频率以第二采样频率拍摄的多个第二采样。 环路增益补偿装置被配置为接收参考频率并应用偏移增益来抵消响应于参考频率变化的PLL环路增益的变化。
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